Designed exclusively for the occupational health & safety industry, the Defender is the ultimate Primary Standard Calibrator. It allows you to calibrate your air sampling pumps within one minute and with a choice of three wide flow ranges; hands...
Defender Model 520 with capture of ambient temperature and pressure conditions - Includes Lead Acid Battery, Charger, Optimizer software & 1 Mtr serial cable. Available in a variety of flow rates
Low (5-500mL/Min), Medium (50-500mL/Min), High ...